MODELING OF LOCAL THERMAL FIELDS IN 
SEMICONDUCTING BARIUM TITANATE CERAMICS

V. N. Shut, E. L. Gavrilenko,
and A. V. Gavrilov

UDC 536.21+621.319.1

A mathematical model for describing local temperature 
fields in barium titanate ceramics with a positive temperature coefficient 
of resistance under the action of electric current has been constructed. 
The space-time temperature distribution within the grains of semiconducting 
barium titanate with varying microstructure and specific resistance 
has been studied.

Institute of Engineering Acoustics, National Academy 
of Sciences of Belarus, 13 Lyudnikov Ave., Vitebsk, 210023, Belarus; 
email: shut@vitebsk.by. Translated from Inzhenerno-Fizicheskii Zhurnal, 
Vol. 79, No. 4, pp. 114-117. Original article submitted November 
18, 2004; revision submitted January 18, 2005.